9902.02.45 - Glyoxal (CAS No. 107-22-2) (provided for in subheading 2912.19.30)

This HTS classification, 9902.02.45, specifically designates Glyoxal (CAS No. 107-22-2) for tariff purposes. Glyoxal is a simple dialdehyde, a highly reactive organic compound with two aldehyde functional groups. Its primary use is as an intermediate in the synthesis of various chemical products, including resins, pharmaceuticals, and textile finishing agents. The inclusion of the CAS number provides a precise chemical identifier, ensuring unambiguous identification of the substance.

As a temporary classification provision under Chapter 99, this entry serves to modify or provide special treatment for Glyoxal, which is otherwise classified under subheading 2912.19.30 as an acyclic aldehyde. The distinction from sibling categories, which largely comprise live animals and their products, is fundamental. Chapter 99 is reserved for special trade provisions, temporary measures, and additional import restrictions, and this specific code targets a single, defined chemical substance for such purposes.

Given that 9902.02.45 is a leaf node, there are no further subcategories within this specific HTS provision. The classification therefore focuses on the direct identification and special handling of Glyoxal itself, rather than any further breakdown of its forms or uses under this particular temporary measure. Classification professionals should refer to the underlying base HTS code (2912.19.30) for the general classification principles of aldehydes if the specific provisions of Chapter 99 are not applicable.